Results 81 to 90 of about 97,244 (184)

Robust Adaptive Beamforming for Uniform Linear Arrays With Sensor Gain and Phase Uncertainties

IEEE Access, 2019
A robust adaptive beamforming method is proposed in this paper for uniform linear arrays with respect to sensor gain and phase uncertainties. The sensor gain and phase parameters are obtained by solving a series of linear equations that describe the ...
Long Yang, Yixin Yang, Jie Yang
doaj   +1 more source

Characterization and Inference of Graph Diffusion Processes from Observations of Stationary Signals

, 2017
Many tools from the field of graph signal processing exploit knowledge of the underlying graph's structure (e.g., as encoded in the Laplacian matrix) to process signals on the graph.
Gripon, Vincent, Mercier, Grégoire, Pasdeloup, Bastien, Pastor, Dominique, Rabbat, Michael G.   +4 more
core   +5 more sources

Direct One-Bit DOA Estimation Robust in Presence of Unequal Power Signals

IEEE Access
Direction-of-arrival (DOA) estimation is a crucial task in wireless communication and radar systems, with applications spanning beamforming, localization, and target tracking.
Amir Masoud Molaei, Vincent Fusco, Okan Yurduseven   +2 more
doaj   +1 more source

Mainlobe Interference Suppression Based on Compressive Sensing and Covariance Matrix Reconstruction [PDF]

Radioengineering
When mainlobe interference exists in space, the traditional anti-interference methods have problems such as peak offset and the performance of sidelobe interference suppression reduction.
X. Zhao, A. Ren
doaj  

Robust space-time adaptive processing based on covariance matrix reconstruction and steering vector correction

The Journal of Engineering, 2019
Clutter presents considerable heterogeneity in forward-looking airborne radar (FLAR) applications and conventional space-time adaptive processing (STAP) methods are sensitive to model mismatch.
Xueyao Hu, Xinyu Zhang, Yang Li, Hongyu Wang, Yanhua Wang   +4 more
doaj   +1 more source

Orthogonal Matrix Retrieval in Cryo-Electron Microscopy

, 2015
In single particle reconstruction (SPR) from cryo-electron microscopy (cryo-EM), the 3D structure of a molecule needs to be determined from its 2D projection images taken at unknown viewing directions.
Bhamre, Tejal, Singer, Amit, Zhang, Teng
core   +1 more source

SurReal: enhancing Surgical simulation Realism using style transfer [PDF]

, 2018
Surgical simulation is an increasingly important element of surgical education. Using simulation can be a means to address some of the significant challenges in developing surgical skills with limited time and resources.
Flouty, Evangello, Giataganas, Petros, Luengo, Imanol, Nehme, Jean, Stoyanov, Danail, Wisanuvej, Piyamate   +5 more
core   +1 more source

Mutual neighbors and diagonal loading-based sparse locally linear embedding

Applied Artificial Intelligence, 2018
In this study, a new Locally Linear Embedding (LLE) algorithm is proposed. Common LLE includes three steps. First, neighbors of each data point are determined.
Rassoul Hajizadeh, Ali Aghagolzadeh, Mehdi Ezoji   +2 more
doaj   +1 more source

Network inference in matrix-variate Gaussian models with non-independent noise

, 2013
Inferring a graphical model or network from observational data from a large number of variables is a well studied problem in machine learning and computational statistics.
Dahl, Andy, Hore, Victoria, Iotchkova, Valentina, Marchini, Jonathan   +3 more
core  

The TileCal Energy Reconstruction for LHC Run2 and Future Perspectives

, 2015
The TileCal is the main hadronic calorimeter of ATLAS and it covers the central part of the detector ($|\eta|$ < 1.6). The energy deposited by the particles in TileCal is read out by approximately 10,000 channels.
de Seixas, José Manoel, Peralva, Bernardo Sotto-Maior   +1 more
core